Javafx : i want to move an obect check for the environment and move again | Java Community | Help. Code. Learn. | Page 1

Here is my pseudo code :

create a square moving on a map
while( programe run ){
if( color == white ){
square go foward
get color of the map under the square
}
if( color == blue ){
square rotate 90
square go foward
get color of the map under the square
}
}

But the point is i want that to be show to the user, but i don't know how can i do that. I tried by using transition but i couldn't find a way to generate theme and play theme consequently after. I tried with animation timer but i couldn't find a way to synchronised theme. So if you have any idea I really need help.

Here is a real working for the code of the pseudo code without animation if it could help:
Main Class :

`public class Main extends Application {

private final int W= 500, H =500;
private String path = "map.png";

public void start(Stage stage) throws Exception {
    Image image = new Image(path, W, H, false, false);
    Node node = new ImageView(image);
    Group root = new Group(node);
    Scene scene = new Scene(root, 500, 500);
    stage.setScene(scene);
    stage.show();

    square bot = new square(root, image);
}

square Class :
`public square(Group group, Image mapImage){

    Image image = new Image(path, size, size, false, false);
    this.sq = new ImageView(image);
    group.getChildren().addAll(sq);

    this.mapImage = mapImage;
    this.rotate = new Rotate();
    rotate.setPivotX(size/2);
    rotate.setPivotY(size/2);
    sq.getTransforms().addAll(rotate);

    this.x = 100;
    this.y = x;
    sq.relocate(x, y);

    System.out.println(look());

    Boolean bol = false;
    while (bol == false ){
        if(look() == "WHITE"){
            goFoward(10);
        } else if (look() == "BLUE") {
            turn(45);
            goFoward(10);
        }
    }
}

public void goFoward(int a ){
    System.out.println("goFoward");
    x = x + a*sin(toRadians(rotation));
    y = y - a*cos(toRadians(rotation));
    sq.relocate(x,y);
}

public void turn(int a){
    System.out.println("turn");
    rotation = rotation + a;
    rotate.setAngle(rotation);
}
public String look(){
    double c;
    PixelReader reader = mapImage.getPixelReader();
    Color argb = reader.getColor( (int)x,(int)y );
    double r = argb.getRed();
    double g = argb.getGreen();
    double b = argb.getBlue();

    if(r < 0.2 && b > 0.5){
        return "BLUE";
    } else if (r > 0.8 && g > 0.8 && b > 0.8) {
        return "WHITE";
    }
    else {
        System.out.print("RGB : ");
        System.out.print(r);
        System.out.print(" / ");
        System.out.print(g);
        System.out.print(" / ");
        System.out.println(b);
        return "ILLISIBLE";
    }
}

#Javafx : i want to move an obect check for the environment and move again